This is a heavy duty padded door anchor designed for resistance training, made of thick padded durable fabric that protects your door from scratches and your bands from abrasion. It is a must-have workout attachment compatible with all common loop bands and resistance tubes. You can easily install it by closing the anchor in the gap of any solid door to create a stable fixed point for your training. It works great for home gym workouts, office stretching, or outdoor travel training, helping you expand various exercise moves for full body strength training.